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annotate test/runtime/6929067/invoke.c @ 2221:0aa3b4908911 jdk7-b131

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Merge
author cl
date Wed, 23 Feb 2011 15:48:46 -0800
parents 3b3d12e645e7
children
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1 #include <assert.h>
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2 #include <jni.h>
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3 #include <alloca.h>
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4
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5 #include <pthread.h>
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6
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7 union env_union
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8 {
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9 void *void_env;
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10 JNIEnv *jni_env;
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11 };
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12
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13 union env_union tmp;
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14 JNIEnv* env;
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15 JavaVM* jvm;
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16 JavaVMInitArgs vm_args;
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17 JavaVMOption options[1];
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18 jclass class_id;
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19 jmethodID method_id;
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20 jint result;
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21
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22 long product(unsigned long n, unsigned long m) {
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23 if (m == 1) {
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24 return n;
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25 } else {
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26 int *p = alloca(sizeof (int));
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27 *p = n;
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28 return product (n, m-1) + *p;
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29 }
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30 }
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31
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32 void *
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33 floobydust (void *p)
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34 {
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35 (*jvm)->AttachCurrentThread(jvm, &tmp.void_env, NULL);
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36 env = tmp.jni_env;
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37
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38 class_id = (*env)->FindClass (env, "T");
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39 assert (class_id);
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40
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41 method_id = (*env)->GetStaticMethodID (env, class_id, "printIt", "()V");
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42 assert (method_id);
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43
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44 (*env)->CallStaticVoidMethod (env, class_id, method_id, NULL);
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45
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46 (*jvm)->DetachCurrentThread(jvm);
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47
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48 printf("%ld\n", product(5000,5000));
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49
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50 (*jvm)->AttachCurrentThread(jvm, &tmp.void_env, NULL);
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51 env = tmp.jni_env;
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52
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53 class_id = (*env)->FindClass (env, "T");
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54 assert (class_id);
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55
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56 method_id = (*env)->GetStaticMethodID (env, class_id, "printIt", "()V");
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57 assert (method_id);
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58
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59 (*env)->CallStaticVoidMethod (env, class_id, method_id, NULL);
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60
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61 (*jvm)->DetachCurrentThread(jvm);
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62
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63 printf("%ld\n", product(5000,5000));
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64
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65 return NULL;
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66 }
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67
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68 int
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69 main (int argc, const char** argv)
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70 {
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71 options[0].optionString = "-Xss320k";
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72
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73 vm_args.version = JNI_VERSION_1_2;
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74 vm_args.ignoreUnrecognized = JNI_TRUE;
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75 vm_args.options = options;
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76 vm_args.nOptions = 1;
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77
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78 result = JNI_CreateJavaVM (&jvm, &tmp.void_env, &vm_args);
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79 assert (result >= 0);
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80
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81 env = tmp.jni_env;
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82
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83 floobydust (NULL);
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84
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85 pthread_t thr;
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86 pthread_create (&thr, NULL, floobydust, NULL);
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87 pthread_join (thr, NULL);
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88
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89 return 0;
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90 }